Question 5: What is the difference between \(\{a,b\}\) and \(\{\{a,b\}\}\)?
Solution:
There is a big difference between the sets \(\{a,b\}\) and \(\{\{a, b\}\}\):
1. \(\{a, b\}\)
This is a set that contains two elements \(a\) and \(b\).
2. \(\{\{a, b\}\}\)
This is a set that contains one element, which is another set i.e. \(\{a,b\}\).